Portion of sunglasses



FIG. 1 is a front view thereof;

FIG. 2 is a rear view thereof;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The broken lines are for purposes of illustration and form no part of the claimed design. 

The ornamental design for a portion of sunglasses, as shown and described. 